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Toru Shirai: Amazon KDP author data
As of Nov 6, 2026, Toru Shirai has 4 books on Amazon, 3 of them on a best-seller list in the last 30 days, mostly in Philosophy, Zen Philosophy, Zen.
4Books on Amazon
3Listed in 30 days
-Average rating
| Median price | $6.50 |
|---|---|
| Price range (middle 50%) | $6.25 – $10.75 |
| Median reviews | - |
| Total reviews | 0 |
| New books (30 days) | 3 |
| Breakout books (30 days) | 0 |
What stands out
- Median price $6.50, 46% below the median of their main category, Philosophy.
- 3 new books in the last 30 days.
Toru Shirai's best-ranked books
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Saikyo no Kenshi Shirai Toru no Kenjutsu to Zen: Tenshin Ittoryu Tenshinden Shirai-ryu Heiho-shu: Gendaigoyaku Kaisetsu-tsuki Nihonbujyutsuhiden (Suzukasha) (Japanese Edition)
by Toru Shirai
- Price$0
- Reviews-
- Published2026-08
-
Toru Shirai: The Unbeaten Swordsman's Way of Sword and Zen: The Martial Teachings of Tenshin Itto-ryu and Tenshinden Shirai-ryu, with Modern English ... ... (Japanese Martial Arts Secrets Book 12)
by Toru Shirai
- Price$6.50
- Reviews-
-
Guía de la Estrategia Marcial: Heihō Michi Shirube (Sabiduría Marcial) (Spanish Edition)
by Toru Shirai
- Price$14.99
- Reviews-
-
Guía de la Estrategia Marcial: Heihō Michi Shirube (Sabiduría Marcial) (Spanish Edition)
by Toru Shirai
- Price$5.99
- Reviews-
Main categories
FAQ
How many books does Toru Shirai have on Amazon?
KDPTop tracks 4 of their books; 3 made an Amazon list in the last 30 days.
Which categories does Toru Shirai publish in?
Their books chart most often in Philosophy, Zen Philosophy, Zen.
How does Toru Shirai price their books?
The median price is $6.50; half of the books cost $6.25–$10.75.
Has Toru Shirai released new books recently?
3 new books in the last 30 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.